Final answer:
An EPA-registered intermediate-level or low-level disinfectant is suited for cleaning non-critical instruments which contact, but do not penetrate, intact skin.
Step-by-step explanation:
An EPA-registered intermediate-level or low-level disinfectant is suitable for cleaning non-critical instruments. These items may come into contact with but do not penetrate intact skin, and require cleanliness but not a high level of disinfection.
Such non-critical items include bed linens, furniture, crutches, stethoscopes, and blood pressure cuffs. For critical and semi-critical items, which require sterilization or a high level of disinfection, more stringent disinfecting protocols such as the use of high-level disinfectants or sterilants are necessary due to their contact with sterile tissues or mucous membranes.